PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/09-04:43:00
G02     204.4          43.0                6.6 +/-    1.27       9.1 +/-    1.27  0.110 / 0.140
G06     156.7          73.8                4.7 +/-    0.88       4.9 +/-    0.88  0.090 / 0.160
G12     310.5          18.7                2.4 +/-    1.02       5.5 +/-    1.02  0.100 / 0.180
G17     40.7           45.8                0.6 +/-    0.26       0.9 +/-    0.26  0.110 / 0.170
G19     14.4           61.1                2.2 +/-    0.61       2.5 +/-    0.61  0.040 / 0.050
G24     291.8          40.1                3.0 +/-    0.99       4.3 +/-    0.99  0.030 / 0.060
G28     108.6          26.5                6.8 +/-    0.68      12.8 +/-    0.68  0.080 / 0.070